CN211387050U

CN211387050U - Composite structure diamond bit

Info

Publication number: CN211387050U
Application number: CN201922492954.XU
Authority: CN
Inventors: 王伟唯
Original assignee: Zhejiang Province Yongkang City Jindu Industry And Trade Co ltd
Current assignee: Zhejiang Province Yongkang City Jindu Industry And Trade Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-01
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a composite structure diamond drill bit, which comprises a circular tubular base body, wherein a plurality of groups of diamond tool bits are uniformly arranged on the upper end surface of the base body at intervals, and each group of diamond tool bits are alternately provided with flat teeth and corrugated teeth; grooves are alternately arranged on the inner side surface and the outer side surface of the corrugated teeth; each group of diamond tool bits also comprises a special-shaped tooth; the special-shaped teeth are pointed teeth or W-shaped teeth; the utility model discloses a lower sword is fast, and is sharper, and machining efficiency is high.

Description

Composite structure diamond bit

Technical Field

The utility model relates to a drill bit technical field especially relates to a composite construction diamond bit.

Background

The diamond cutter teeth and the steel pipe are fixedly connected into a whole through laser welding or high-frequency welding to form the diamond drill bit. At present, the structures of the tool bits of the most commonly used diamond drill bits in the industry are consistent, the drill bits have the defects of difficult coring, large contact area between the tool bits and sawing materials, large resistance load generated by drilling, slow drilling speed, poor chip removal and cooling capacity under the condition of dry drilling, and incapability of timely dissipating heat generated by drilling, so that the strength of diamond in the tool bits is reduced and broken due to ablation, and the drilling cannot be effectively carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a composite construction diamond bit, this utility model lower sword is fast, and is sharper, and machining efficiency is high.

For solving the technical problem, the technical proposal of the utility model is that: a composite structure diamond drill bit comprises a circular tubular substrate, wherein a plurality of groups of diamond tool bits are uniformly arranged on the upper end surface of the substrate at intervals, and each group of diamond tool bits are alternately provided with flat teeth and corrugated teeth; the inner side face and the outer side face of each corrugated tooth are alternately provided with grooves.

In a further improvement, each group of diamond tips further comprises a profiled tooth. Through the interval arrangement cooperation of profile shape tooth and ripple tooth and flat tooth, further reduce the area of contact between drill bit and the brill material of cutting, the tooth of multiple shape cooperatees in each group's diamond segments, does benefit to the drill bit and gets into the inside of waiting to cut the material at rotatory in-process fast, does benefit to and improves machining efficiency.

Preferably, the profile teeth are pointed teeth or W-shaped teeth. Preferred profile shape is the upper end face shape changeable and with wait to cut the little sword tooth of material area of contact, the flat tooth of cooperation cuts into the inside of cutting the material to boring fast on the one hand, and on the other hand, the flat tooth grinds the plane of cutting fast flat, consequently the utility model discloses a machining efficiency is high.

In a further improvement, the sharp-top tooth is provided with a first body, and the upper end of the first body is provided with a blade protruding upwards. The utility model discloses well point apical tooth has improved the sharpness of drill bit, does benefit to the utility model discloses cut into fast.

In a further improvement, the W-shaped teeth are provided with a second body, and the second body is provided with a downward first notch and an upward second notch; the upper end surface of the second body is a curved surface which is up and down fluctuated. The W-shaped teeth in the utility model reduce the volume thereof, and the contact area between the air and the W-shaped teeth is increased by arranging the first notch and the second notch, thereby being beneficial to cooling the drill bit; and the curved surface of fluctuation about between the second breach reduces W shape tooth and the area of contact who bores the tangent plane, and inside cooperation flat tooth and the ripple tooth bored the cut entering to waiting to process the material fast, improved the utility model discloses a machining efficiency, chip removal ability and cooling capacity.

In a further improvement, the first notch is located between the two second notches. The first notch and the second notch are uniformly arranged on the W-shaped tooth, so that cooling and chip removal of the W-shaped tooth are facilitated.

Preferably, the groove is open. The utility model discloses the recess of well preferred ripple tooth both sides is very big reduction knife flank on the one hand and bores the area of contact who cuts the material for uncovered form, has just also reduced the frictional force that bores between cutting, increases chip removal and cooling capacity to the sharpness and the machining efficiency of sword tooth have been improved.

Preferably, the tooth heights of the flat teeth, the corrugated teeth and the special-shaped teeth are the same, and the distribution range of the tooth heights is 5-12 mm;

the flat teeth, the corrugated teeth and the special-shaped teeth have the same tooth thickness, and the distribution range of the tooth thickness is 2-6 mm. The utility model discloses structural strength is good.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses flat tooth, ripple tooth alternate arrangement on every group diamond segments that the intermediate separation set up including the cutting top sword are favorable to improving down sword speed, and the recess to the side of the ripple sword tooth of drill bit helps the chip removal and reduces sword tooth side and bores the area of contact who cuts the material, has just also reduced and has bored the frictional force between cutting, increases chip removal and cooling capacity, improves the sharpness and the machining efficiency of sword tooth, and it is easy to get the core simultaneously, safety and stability.

Thereby achieving the above object of the present invention.

Drawings

Fig. 1 is a schematic structural diagram of a composite-structure diamond drill bit in an embodiment 1 according to the present invention;

fig. 2 is a schematic structural diagram of a composite-structure diamond drill bit of embodiment 2 according to the present invention;

FIG. 3 is a perspective view of a middle flat tooth of the present invention;

FIG. 4 is a perspective view of a corrugated tooth of the present invention;

FIG. 5 is a perspective view of the center tine of the present invention;

fig. 6 is a perspective view of the W-shaped teeth of the present invention.

In the figure:

a substrate 1; a flat tooth 2; a corrugated tooth 3; a recess 31; a pointed tooth 4; a first body 41; a blade edge 42; a W-shaped tooth 5; a second body 51; a first notch 52; a second notch 53.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

Example 1

The embodiment discloses a diamond drill bit with a composite structure, which comprises a circular tubular substrate 1, wherein multiple groups of diamond tool bits are uniformly arranged on the upper end surface of the substrate 1 at intervals, and flat teeth 2, corrugated teeth 3 and pointed teeth 4 are alternately arranged on each group of diamond tool bits at intervals; the inner side and the outer side of the corrugated tooth 3 are alternately provided with grooves 31. Through the interval arrangement cooperation of sharp apical tooth 4, ripple tooth 3 and flat tooth 2, further reduce the area of contact between drill bit and the brill material of cutting, the tooth of multiple shape cooperatees in each group's diamond segments, does benefit to the drill bit and gets into to the inside of waiting to cut the material at rotatory in-process fast, does benefit to and improves machining efficiency.

The sharp-top tooth 4 upper end and the little sword tooth of waiting to cut material area of contact cooperate flat tooth 2, cut into to the inside of drilling and cutting the material fast on the one hand, and on the other hand, flat tooth 2 grinds the plane of cutting fast and flattens, therefore the machining efficiency of this embodiment is high.

The said pointed tooth 4 in this embodiment has a first body 41, the upper end of the first body 41 being provided with an upwardly projecting blade 42. The sharp top tooth 4 in the embodiment improves the sharpness of the drill bit, and is beneficial to the rapid cutting of the embodiment.

Preferably, the recess 31 is open. In the embodiment, the grooves 31 on the two sides of the corrugated teeth 3 are preferably in an open shape, so that the contact area between the side surfaces of the cutting teeth and a drilling material is greatly reduced, the friction force between the drilling and the cutting is reduced, and the chip removal and cooling capacity is increased, thereby improving the sharpness and the processing efficiency of the cutting teeth.

Preferably, the flat teeth 2, the corrugated teeth 3 and the sharp-top teeth 4 have the same tooth height, and the distribution range of the tooth height is 5-12 mm;

the flat teeth 2, the corrugated teeth 3 and the sharp-top teeth 4 have the same tooth thickness, and the distribution range of the tooth thickness is 2-6 mm. The structural strength of the embodiment is good.

Every group of diamond segments that the interval set up in this embodiment includes that flat tooth 2, ripple tooth 3 and sharp apical tooth 4 alternate arrangement on the cutting top edge are favorable to improving lower sword speed, and recess 31 at drill bit ripple sword tooth side helps the chip removal and reduces the area of contact of sword tooth side and brill material of cutting, has just also reduced the frictional force between brill cutting, increases chip removal and cooling capacity, improves the sharpness and the machining efficiency of sword tooth, and it is easy to core simultaneously, and safety and stability.

Example 2

The main differences between this embodiment and embodiment 1 are:

the composite structure diamond drill bit disclosed in the present embodiment, as shown in fig. 2, fig. 3, fig. 4 and fig. 6, includes a circular tubular substrate 1, wherein a plurality of groups of diamond segments are uniformly arranged on the upper end surface of the substrate 1 at intervals, and each group of diamond segments is alternately and alternately provided with flat teeth 2, corrugated teeth 3 and W-shaped teeth 5. The W-shaped tooth 5 is provided with a second body 51, and the second body 51 is provided with a downward first notch 52 and an upward second notch 53; the upper end surface of the second body 51 is a curved surface which undulates up and down. In the embodiment, on one hand, the W-shaped teeth 5 reduce the volume thereof, and the contact area between air and the W-shaped teeth 5 is increased by arranging the first notches 52 and the second notches 53, so that the cooling of the drill bit is facilitated; and the up-and-down curved surface between the second notches 53 reduces the contact area of the W-shaped teeth 5 and the drilling section, and the flat teeth 2 and the corrugated teeth 3 are matched to quickly drill and cut into the material to be processed, so that the processing efficiency, the chip removal capability and the cooling capability of the embodiment are improved. The first notch 52 is located between the two second notches 53. The first notch 52 and the second notch 53 are uniformly arranged on the W-shaped tooth 5, so that cooling and chip removal of the W-shaped tooth 5 are facilitated.

The above embodiments and drawings are not intended to limit the forms and modes of the present embodiments, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present embodiments.

Claims

1. The utility model provides a composite construction diamond bit, includes the pipe form base member, and the up end of base member evenly spaced is provided with multiunit diamond segments, its characterized in that: each group of diamond tool bits are alternately provided with flat teeth and corrugated teeth; the inner side face and the outer side face of each corrugated tooth are alternately provided with grooves.

2. A composite construction diamond drill bit according to claim 1, characterized by: each group of diamond tool bits also comprises a special-shaped tooth.

3. A composite construction diamond drill bit according to claim 2, characterized in that: the special-shaped teeth are pointed teeth or W-shaped teeth.

4. A composite construction diamond drill bit according to claim 3, characterized by: the sharp-top tooth is provided with a first body, and the upper end of the first body is provided with a blade protruding upwards.

5. A composite construction diamond drill bit according to claim 3, characterized by: the W-shaped teeth are provided with second bodies, and the second bodies are provided with downward first notches and upward second notches; the upper end surface of the second body is a curved surface which is up and down fluctuated.

6. A composite construction diamond drill bit according to claim 5, characterized by: the first gap is positioned between the two second gaps.

7. A composite construction diamond drill bit according to any of claims 1 to 6, characterized in that: the groove is open.

8. A composite construction diamond drill bit according to claim 2, characterized in that: the flat teeth, the corrugated teeth and the special-shaped teeth have the same tooth height, and the distribution range of the tooth height is 5-12 mm;

the flat teeth, the corrugated teeth and the special-shaped teeth have the same tooth thickness, and the distribution range of the tooth thickness is 2-6 mm.